All but the first have been answered correctly, I'll go ahead and give the
answer to that one also, I usually don't get very many guesses after the
first day.


Spoilers
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363. The prisms can be used to make an optical device called a pseudoscope.
I made a separate page with more info on this one:

http://pseudoscope.blogspot.com/

364. Tire gauge

365. 3-String capo

366. Corkscrew

367. Pulse monitor

368. Saw blade

369. Nutcracker


More photos and links can be found on the answer page:

http://pzphotosan67.blogspot.com/


Rob